title: Chemical patterns in translating vortices: inter- and intra-cellular mixing effects.
abstract: Stationary chemical patterns-flow distributed oscillations (FDOs)-are obtained when the Belousov-Zhabotinsky reaction is coupled with translating vortex flow in a Vortex Flow Reactor. For certain conditions, the FDOs are unstable with the observation of disappearing bands or complex patterns. The transitions between modes of pattern formation are reproduced in a modified Oregonator model consisting of two-zone cells connected in series. We show that increasing inter-cellular mixing of the outer zones results in a transition from FDO to absolute instabilities (AI) and increasing intra-cellular mixing between the core and outer zones can drive the reverse transition between modes (AI to FDO).
authors.affiliation: School of Chemistry, University of Birmingham, Birmingham B15 2TT, United Kingdom.
authors.forename: Antoine
authors.initials: A
authors.lastname: Vallatos
authors.forename: Rhys
authors.initials: R
authors.lastname: Evans
authors.forename: Barnaby W
authors.initials: BW
authors.lastname: Thompson
authors.forename: Annette F
authors.initials: AF
authors.lastname: Taylor
authors.forename: Melanie M
authors.initials: MM
authors.lastname: Britton